Feed mechanism for fertilizer-distributers.



No. 801,139. BATENTED OCT. 3, 1905. I

H. W.'EISENHART. FEED MECHANISM FOR FERTILIZER DISTRIBUTERS.

APPLICATION FILED nnnzze, 1905.

8 SHEBTBSHEET 1.

PATENTED OCT. 3, 1905.

H. W. EISENHART.

FEED MECHANISM FOR FERTILIZER DISTRIBUTERS.

APPLICATION FILED JULY 26. 1905.

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f [NVENTOR Alfomey No. 801,139. PATENTED OCT. 3,1905. H. W. EISENHART.

FEED MECHANISM FOR FERTILIZER DISTRIBUTERS.

APPLIOATION FILED JULY 26, 1905.

8 SHEETS-SHEET 3.

5' [/VVENTOR A M W W1 7/ SE5.-

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HENRY IVOLF EISENHART, OF YORK PENNSYLVANIA, ASSIGNOR TO A. B.

FARQUHAR COMPANY, LIMITED, OF YORK, PENNSYLVANIA.

FEED MECHANISM FOR FERTILIZER-DISTRIBUTERS.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed July 26, 1905, Serial N01 271,344.

To (tZZ whont it may concern:

Be it known that I, HENRY VVoLr EISEN- HART,a citizen of the United States, residing at York,county of York, and State of Pennsylvania, have invented certain new and useful Improvements in Feed Mechanism for Fertilizer- Distributers, of which the following is a specification.

My invention is primarily for use on forcefeeds of the kind set forth in Letters Patent No. 36a,969,of June 14, 1887, and No. 296,239, of April 1, 1884:, although its use is not limited thereto.

It consists in certain improvements designed to facilitate the taking apart and cleaning of the moving parts of the feed, to lessen the friction and render the movements of the parts smooth and easy, and to prevent the sifting of the pulverized fertilizing material through the joint between the toothed feed-wheel and the bed-plate against which it runs.

The improvements will first be described by reference to the accompanying drawings, forming part of this specification, and will then be more particularly pointed out in the claims.

In the drawings, Figure 1 is a plan of so much of a fertilizer-distributer-feed mechanism as necessary to an understanding of my improvements. Fig. 2 is a vertical section of the same on line 2 2, Fig. 1. Fig. 3 is a bottom plan of the bed-plate. Figs. 4 and 5 are bottom views of the two parts of the crownfeed wheel detached from one another.

The feed mechanism shown in the drawings is in general plan what is known as the Spangler feed, the subject of the two Spangler patents, Nos. 296,239 and 36A,969, hereinbefore referred to.

A is the bed-plate, provided with the usual discharge-throat a.

B is the feed-wheel, consisting of the toothed disk 6, the circular base-plate 0, and the annular circular wall (Z, which rises from the rim and affords a support for the toothed disk Z), provided on its under face with an annular flange 5, Figs. 1 and 5, which fits into the top of the annular wall (Z very much as the flange on the under face of a pot-lid fits into the mouth of the pot which it covers, these parts being held together by a central bolt 6, which passes up through the wheel from below and has on its projecting upper end a butterfly thumb-nut n. Upon the under face of the base-plate is cast the cogged crown-wheel am, through the hub m of which the bolt 6 passes. This hub fits in a central socket in the spider s, which is on the under side of thebed-plate A and is cast in one therewith. The spider has retaining loops or bearings for the beveled driving-pinion p, which meshes with the crown-Wheel m and is driven by the powershaft 9*.

C is the clearer-cap, which has the function of the part lettered m in Patent No. 296,239 and fin Patent No. 364,969.

D is the pivoted combined scraper and gate, corresponding to the device g of Patent No. 364,969.

The parts thus far described are actuated and have substantially the same mode of operation as in the well-known Spangler feed,-

above mentioned, and they therefore require no further description here.

I proceed now to point out the improvements which constitute the present invention.

The Spangler feed and all feeds made and operating on that plan are open to the objection that they are liable to clog up the phosphate when it gets wet, and the drill lies awhile unused, baking fast to the parts, so as to render it necessary to take apart and clean the mechanism. This when the feed-wheel was arranged as in the patents referred to, with the base-plate 0 located below the bedplate A and pressed up and bearing against the under face of the same, was a very troublesome undertaking, involving, among other things, the removal of the driving-shaft '1" and also the detaching and removal of the spider 8. Under the present improvement all this difficulty is obviated. The base 0 of the feedwheel, as will be seen by inspecting the drawings, is located above instead of below the bed-plate A and takes its bearing upon the upper instead of the lower face of that plate, and the bolt 6, by which the parts of the feedwheel are held together and the wheel as a whole is secured to the spider s and bedplate A, passes centrally up from below through the spider and the hub of the feedwheel and has on its screw-threaded end, which projects above the face of the toothed feed-disk Z), a butterfly thumb-nut a, by screwing down which the parts will be drawn tightly together and the Wheel as a Whole will be held securely in place in or on its bearings. On the other hand, Whenever it becomes necessary to take apart and clean the feed all that is needed is to remove the nut a (and of course the cap C, if that be used) and the feed-whee] can at once be lifted out with entire ease and without disturbing any of the other parts of the mechanism, the opening in the bed plate in which the feed-wheel is located being large enough to permit the passage through it of the crown-wheel m on the under face of the base 0. Inasmuch as under this arrangement the spider s need not be disturbed, I am enabled to cast it in one with the bed-plate and to obtain the advantages growing out of that change. Moreover, to reduce friction as far as possible and to render the running of the feed-wheel smooth and easy and also to prevent the fertilizer in the box from sifting through the joint between the feed-wheel and the bed-plate, and thus escaping from the machine, I form around the opening in the bed plate A, through which the feed-wheel passes, an annular circular curb or vertical flange 4:, upon which the under face of the rim of the base-plate 0 of the feed-wheel bears. The top of this curb and the under face of the rim, which runs on said curb, are both of them trued and dressed ofi to fit flat together closely, so that while they permit of smooth running with minimum friction they at the same time make a fit with one another so tight as to prevent any escape of the fertilizer, thus removing a serious objection to feed mechanisms of this general kind.

Having now described my improvements and the manner in which the same are or may be carried into effect, I state in conclusion that I do not limit myself strictly to the structural details hereinbcfore set forth in illustration of the invention, since manifestly the same can be varied considerably Withoutdeparture from the spirit of the invention; but,

W hat I claim herein as new, and desire to secure by Letters Patent, is as follows:

1. In a feed mechanism for fertilizer-dis tributers the combination of a force-feed wheel having a circular base with a crownwheel on its under face, a toothed feed-disk and an intervcningcircular wall, as described, a bed-plate having an opening in which the feed-wheel is located with its base above the bed-plate and taking its bearing against the upper face of that plate, and means for sup-' porting and holding the feed-wheel in place in the bed-plate, substantially as hereinbcfore set forth.

2. In a feed mechanism for fertilizer-distributors, the combination of a force-feed wheel having a circular base with a crownwheel on its under face, a toothed feed-disk and an intervening wall as described, a bedplate and a spider in which the feed-wheel is centrally supported, with its base located above the bed-plate and bearing against the upper face of that plate, aeentra] bolt passing from below up through the spider and the feed-wheel, and a retaining-nut on the endof the bolt which projects above the feed-wheel, substantially as hereinbcfore set forth.

3. In combination, the bed-plate having an opening for the feed-wheel of sufficient diametcr to permit the passage therethrough of the crown-wheel on the feed-wheel, and an annular curb or vertical flange surrounding said opening, the feed-wheel having a base provided with a crown-wheel on its under face and located above and resting by its rim in said curb, and means for holding the feedwheel in position and drawing it down to a close bearing on the curb, substantially as and for the purposes hereinbcfore set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY WOLF ElSENHAR-T.

Witnesses:

FRANcIs FARQUHAR, JAcoB E. WEAVER. 

